I have to disagree and agree
First let me disagree - All those that posted back in the fall of last year... I disagree with you about both your assessment of the MVP and your comparison to the ACS.
The nicest thing about the MVP, is it's completely configurable. Dont like the colors, change me, don't like not having individual CHT/EGT's they are there and available. Do you want engine management or engine information. Two dramatically different things and the MVP does the management better than all. Just for kicks, try to monitor 2 busses, both volts and amps with the AF-2500, without a switch of course.
And I agree with the final poster, this thing is gonna be awesome. And it supports the Chelton interface. I should know, I'm putting dual cheltons and the MVP in my Lancair.
I first looked at going down the AFS route, but it seems to be best laid out for a 4 cylinder with either NA or Turbo, but wanting some of both seemed problematic. I then looked at the GRT EIS, but while it supported the Chelton, it was limited in what you could hook to it and it won't support the Aux 5 or 6 inputs in the Chelton configuration, so I lost the ability to monitor the second bus.
Plus I wanted full expandability. The MVP supports dual (or more) busses for current and volts (a requirement in an all glass airplane). Main L/R, Aux L/R, header, etc fuel information. It will interface to just about anything that has or can provide 0-5v of information (great for flap position display). It's a complete fuel totalizer, fuel and engine management system, complete with internal memory with configurable parameters. A USB port to upload new features, checklists, etc or download the recent or older flight parameters.
To compare the AF-2500 to the MVP is really not very smart. The AF specifically is designed for a 2 tank, conventional aircraft, that has limited engine management functions. The MVP is a fully configurable engine mangement system, with support for configurable displays, field upgradeable software updates, both system and internal screens; data recording and analysis features.
Look at the list price difference for the same cylinder configuration and you'll find it really isn't that much more expensive, but then look what you get.
Now we just need to start a campaign with the guys at EI.... I want to hook my IPOD up to the display and a screen that I can select that will show me what track and song information I'm listening too on the my IPOD!
My .02,
Alan